OK, now I understand. I also thought you meant that you lost those beliefs when listening to the tapes rather than that when you were listening to the tapes you realized that you lost those beliefs. In NLP that is called a ambiguity.
That most people lose empowering beliefs we had as children is typical considering the educational and socialization process we go through. Some of it is unavoidable but IMO much of it can be avoided.
For anyone interested, the two versions of Unlimited Power are the 6 tape Nightingale-Conant set and the complete book on tape by RRI. The 6 tape set was my first exposure to NLP and IMO much better than the more expensive Personal Power. Likewise, the book Unlimited Power is better than his second book. Both are huge and I've had them sitting around partially read for years 
until this summer when I reviewed the Photoreading class. I Photoread and activated them both in one day. 
With NLP books it is best to go through them again after activating and do each exercise to get the full benefit.
